/**
 * Copyright 2023-present DreamNum Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

export function requestImmediateMacroTask(callback: (value?: unknown) => void): () => void {
    const channel = new MessageChannel();
    let cancelled = false;

    const hanlder = () => {
        if (!cancelled) {
            callback();
        }
    };

    // This would cause memory leak. But we cannot use addEventListener because it won't work in web worker.
    channel.port1.onmessage = hanlder;
    channel.port2.postMessage(null);

    return () => {
        cancelled = true;
        channel.port1.close();
        channel.port2.close();
    };
}
